18218408090

素因数分解:

$2^1\times 5^1\times {\mathrm{8501}}^1\times {\mathrm{214309}}^1$

素因数の和:222817

約数の個数: 16

約数和(自身を含む): 32797145160

約数和(自身を除く): 14578737070

約数列:

[1, 2, 5, 10, 8501, 17002, 42505, 85010, 214309, 428618, 1071545, 2143090, 1821840809, 3643681618, 9109204045, 18218408090]

約数ペア:

[(1, 18218408090), (2, 9109204045), (5, 3643681618), (10, 1821840809), (8501, 2143090), (17002, 1071545), (42505, 428618), (85010, 214309)]